Electric switch.



No; 818,035. I PATENTEB APR. 17 1906.

H. LEPPBRT.

ELECTRIG- SWITUH.

APPLICATION FILED APR. 24, 1905.

which the following is a full, clear,

washer being removed.

UNITED STATEAEE T @ldlilliGE.

' HENRY E. LEPPERT, @F NEW BRKTAEN, CONNECTICUT, ASSIGNOR TO THE HART MANUFACTURlNG COMPANY, 01* HARTFORD, CUNNECTICUT, A

GORPORATlON or new Jnnsnr.

arermc swarm-i.

No. erases.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed April 24,1905. Serial No. 257.127.

To all whom it may concern.-

Be it known that I, HENRY E. LEPPERT, a citizen of the United States, residing at New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in Electric Switches, of

description.

My invention relates to electrical apparatus, and particularly to electric switches.

It consists, mainly, in improving the means for operating a switch, the same being simple, inexpensive, and efiective and capable of operation by a very slight movement.

in the accompanying drawings, Figure 1 is a plan view of an electric switch equipped with'my improved operating device, the top of the operating device detached. Fig. 3 is a side elevation of the switch, partly in section.

'ihe switches to which my invention relate are termed snap-switches, as the contact devices are caused to make and break the connection by a very quick or snap ing movement. I need not describe in detai the particular construction of such a switch, since there are various forms of the same. will, however, refer to certain main features.

1 is the base supporting the various parts.

2 2 are termina s. I

3 is a contact-blade arranged to make and break the connection with said terminals. The contact-blade 3 is carried on a suitable rotary, support 4, which is spring-actuated from a rotatable arbor 5. Mounted on the central arbor 5 is an operating-arm 6, which partakes of an oscillating motlon.

7 is a spring arranged to cause the arm 6 to assume a certain normal position.

8 is a chain or cord suitably connected with the operating arm, arranged when pulled to move the operating-arm in o os1-' tion to the tendency of the spring 7. hen moved in one direction, it is desira le that the and exact Fig. 2 is a plan view v 5* and the opposite walls of the grooves in the lever 6. These walls are indicated at 9 9 in Fig. 2, and it will be seen that they are cam-shaped, so that when theo crating-arm is turned in one direction the balls will wed e between the lever and the hub 5*, so that t e latter will be clutched and turned with said lever. When, however, the operating-lever is released, it will return freely to its normal position, the balls being freed.

9 9 are springs by which the parts 9 are lightly pressed in a direction to cause them to wedge when the lever is turned in the proper direction.

Suitable washers '10 10 stand above and. below the balls 9 to revent them from be coming accidentally isengaged.

Neither chain 8 nor spring 7 is necessary for attaining some of the advantages of my invention, as the operatin device might be moved directly by hand in 0th directions.

What I claim is 1. In a snap-switch, a central arbor, a contact device arranged to be operated thereby,

an o crating device mounted on said arbor, and ree to revolve thereon in one direction, and means for engaging said 0 crating device with said arbor when the ormer 1s ro tated in an opposite direction, said means comprisin an independentlymoving part arranged etween said arbor and the we l of said operating device, said wall being shaped to form a wedge-shaped space for said independently-rnovir1g part.

2. In a snap-switch, a central rotatable arher, a contact device carried thereby, an operating device mounted on said arbor and free to revolve thereon in one direction, and means for engaging said operating device with said arbor when the former is rotated in an opposite direction, said means including a hub, an e'xternallyarran ed sleevcdike member overstanding said hu and an inde pendently moving part arranged between said arbor and said sleeve-like member and arranged to interlock said sleeve-like mem her and said arbor when the former is moved in one direction relatively thereto, and a spring for normally pressing said interlocking device toward the inte locking position.

llllh ltY E. LEPPERT.

Witnesses:

' G. W. .lIAR'r,

ii. i. lNGHAM. 

